Tock is a compiler for concurrent programming languages under
development at the University of Kent. It translates occam-pi and Rain into portable,
high-performance C or C++. It is implemented in Haskell using the nanopass approach, and
aims to make it easy to experiment with new language and compiler features. Since
our initial presentation of Tock at CPA 2007, we have added new frontends and
backends, implemented a parallel usage checker based on the Omega test, improved the
effectiveness of Tocks test suite, developed more efficient tree traversals using generic
programming – and more besides! In this fringe session, we will describe our recent
work on Tock, discuss our plans for the project, and show how it can be of use to other
process-oriented programming researchers.